The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 15, 2014
Filed:
Mar. 09, 2012
Toshie Wata, Osaka, JP;
Tadayoshi Takahashi, Osaka, JP;
Toshie Wata, Osaka, JP;
Tadayoshi Takahashi, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
Disclosed is a battery with terminal, including a power generating element and a housing can accommodating the power generating element. The power generating element includes a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The negative electrode includes a material mixture including a negative electrode active material and a binder. The negative electrode active material contains an amorphous Si phase, and the binder includes a polyacrylic acid. The non-aqueous electrolyte includes a non-aqueous solvent, and a lithium salt dissolved in the non-aqueous solvent, and the non-aqueous solvent contains vinylethylene carbonate. The housing can has at least one lead terminal welded thereto. The molar ratio of the vinylethylene carbonate to the amorphous Si phase in the negative electrode active material is 0.09 to 0.17.